Grab bar



FIG. 1 is a top perspective view of a grab bar showing my new design;

FIG. 2 is a reduced top perspective view thereof, the broken line showing of a portion of a tub being for illustrative purposes only;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan thereof, viewed in the direction of the arrow (4) in FIG. 3;

FIG. 5 is a bottom plan view thereof, viewed in the direction of the arrow (5) in FIG. 3;

FIG. 6 is a rear elevational view thereof, viewed in the direction of the arrow (6) in FIG. 4;

FIG. 7 is a left side elevational view thereof, viewed in the direction of the arrow (7) in FIG. 3; and,

FIG. 8 is a right side elevational view thereof, viewed in the direction of the arrow (8) in FIG. 3. 

The ornamental design for a grab bar, as shown and described. 